<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title>浮动</title>
		<link href="css/boxstyle.css" rel="stylesheet"/>
		
	</head>
	<body>
		<!-- 快速创建类名box盒子：标签名.box*个数>tab -->
	<div class="bigbox clearfix">
		<div class="box" >box1</div>
		<div class="box" style="height: 180px;">box2</div>
		<div class="box" style="height: 230px;">box3</div>
			<!-- <div class="clear"></div> -->
	</div>
	
		<div class="box2">box4</div>
	</body>
</html>
